Not sure what the answer is

Answer:
equation of a line = y = ax+b
slope = ax
the given slope = 1/3x = y
so you plug in the coordinate to the equation to find b
(9,6)
1/3(9) + b = 6
3 + b = 6
b = 6-3 = 3
y=1/3 x + 3
hope that answers your question
Don't hesitate to leave a comment if you are confused about something
Step-by-step explanation: